Academic Resources

English Resources

http://www.act.org/compass/sample
http://www.testpreview.com
https://owl.english.purdue.edu
http://www.yourdictionary.com
http://www.quickanddirtytips.com/grammar-girl

Math Resources

http://www.act.org/compass/sample/
http://www.testprepreview.com/
http://www.purplemath.com/
http://www.mathsisfun.com/

Kahn Academy

Offers resources for:
Math
Science
Economics
Finance
Humanities
Computer Programming
http://www.khanacademy.org/

TED Talks

http://www.ted.com/talks